The Scientific Method. HAVE YOU EVER EXPERIENCED THESE…. 6 Phases of a Project?. Enthusiasm Disillusionment Panic Search for the Guilty Punishment of the Innocent Praise and Honors for the Non-Participants. If you have experienced the 6 Phases of a Project…. The Scientific Method
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The Scientific Method
can come to
A. A process to answer questions
B. You use science everyday
C. It is an ever present
part of life
Study of forces and energy
Study of matter and its changes
Study of living things
D. Earth Science
Study of the earth; geology, meteorology,
Link to http://dsc.discovery.com/videos/mythbusters-science-vs-scientific-method.html
A. Steps to follow to solve or understand problems
B. The Steps
1. Problem – observe a problem or something interesting
* Formulate a question –
Ex. Why does the silver lure catch more fish?
Answer pre-lab questions
3. Form a hypothesis – predict an answer to the problem
*must be in, “IF…, then…” format (Ex. If the silver lure is used, then more fish will be caught)
*Hypothesis must be testable
a. Experiments should be conducted at least 3 times
for repeatable, better data
1) control – part of the experiment that has no variables (Ex. Use a lure with no color to catch fish)
2) independent variable - the factor that you can change
Ex. change the color of the lure
- CHANGE ONE Variable at a time
Ex. The number of fish caught
4) Ex. of experiment parts:
If oil is added to a door hinge, then the door will not squeak.
control – not adding oil
independent variable – oil
dependent variable – the squeak
1. What is the independent variable?
2. What is the dependent variable?
3. Which group is the control group?
Answer: Group1-no gibberellin added
Ex. - The silver lure caught the most fish
-- Which lure caught the biggest fish?
THERE IS NEVER AN EXPERIMENT THAT FAILS
A predicted solution to a problem that is testable c
1. A logical explanation of events that happen in nature
2. A theory has been tested
3. A theory is a possible explanation
4. A theory is not 100%
1. A theory that has been tested many times and is accepted as true
2. a summaryof an observed natural event
3. Not necessarily 100%, accepted - but never proven wrong